Pharmaceutics Articles

28 December 2012

VALIDATION OF DRY HEAT STERILIZATION METHODS

About Authors:
Lila dhar*¹, Surender Jalandra
¹ Seth G. L. Bihani S. D. College Of Technical Education,
Institute Of Pharmaceutical Sciences & Drug Research,
Gaganpath, Sri Ganganagar, Rajasthan 335001
*ldbudania@gmail.com

ABSTRACT
Dry heat is sometimes used for sterilization instead of the much more efficient moist heat because some materials are sensitive to moisture. Dry heat is often used to ensure that glass and other laboratory equipment is free of pyrogenic material. The process of sterilization within a chamber or hot air tunnel is a critical process and there is a regulatory requirement for validation of the process in most countries. Validation is defined as the documented procedure of obtaining, recording and interpreting results to ensure that the dry heat sterilization process has been and will be consistently effective. Dry heat sterilizer validation consists of accurately measuring the temperature at critical points within the sterilization chamber throughout the process. Dry heat process generally employs a temperature between 250°C and 400°C for varying time. The sterilizer is required to heat all parts of its load up to the specified temperature for a specified period long enough to achieve the desired sterility.
25 December 2012

FORMULATION AND OPTIMIZATION OF SELETRACETAM FAST DISSOLVING TABLET

About Authors:
Liladhar*
¹Seth G. L. Bihani S. D. College Of Technical Education,
Institute Of Pharmaceutical Sciences & Drug Research,
Gaganpath, Sri Ganganagar, Rajasthan 335001
ldbudania@gmail.com*

ABSTRACT:
The objective of the present research was to prepare fast disintegrating tablet of Seletracetam because of its application in epilepsy and convulsion related problem. Fast on set of action and avoidance of abundant of water in oral route. Which is highly desirable in this type of disease condition. The effect of formulation and process variables such as hardness, disintegration time, and in vitro dissolution and physical characteristics of fast dissolving tablet were examined on optimized drug/super disintegrant ratio by 32 factorial designs. During the work tablets were prepared by direct compression using Kyron T-314 and sodium starch Glycolate as super disintegrant ,where MCC,Lactose monohydrate for direct compression, aspartame as sweetner.The different powder blends were evaluated for pre-formulation parameters such as bulk density, tapped density, angle of repose,carr’s index,hausner’s ratio. The tablets were evaluated for post-compression parameters such as weight variation, Tablet hardness and tablet friability. In vitro Disintegration test, tablet thickness, in vitro dissolution profile. All the physical characteristics of powder blend and fibrillated tablet were within acceptable limits. The result of Dissolution studies indicated that formulation F7 release 98.70% of drug at 25 min interval which give the most successful of study.F7 batch contain Seletracetam (Drug), SSG(4%), kyron T-314(2%) and other excipients.F7 batch was the optimized batch since it showed of Disintegration time(17sec),friability(0.91%) and %Drug release (98.70%).
24 December 2012

TRANSFERSOMES: A NOVEL TECHNIQUE FOR TRANSDERMAL DRUG DELIVERY

About Authors:
Patel Chirag J^*1, Prof. Satyanand Tyagi², Patel Pinkesh¹, Umesh Kumar¹, Patel Jaimin¹, Chaudhari Bharat¹
¹Department of Pharmaceutics, Maharishi Arvind Institute of Pharmacy, Mansarovar, Jaipur, Rajasthan, India-302020.
*Mr. Chirag Patel has published various Books, Research and Review articles. His academic works include 35 Publications (2 books was published in Lambert Academic Publishing, Germany & 8 Research Articles and 25 Review Articles was published in standard and reputed National and International Pharmacy journals)
²President & Founder, Tyagi Pharmacy Association (TPA) & Scientific Writer (Pharmacy), Chattarpur, New Delhi, India-110074.
*chirag.bangalore@gmail.com, +91-8000501871

ABSTRACT:
The transdermal route of drug delivery has gained great interest of pharmaceutical research, as it circumvents number of problems associated with oral route of drug administration. Recently, various strategies have been used to augment the transdermal delivery of bioactives. Mainly, they include electrophoresis, iontophoresis, chemical permeation enhancers, microneedles, sonophoresis, and vesicular system like liposomes, niosomes, elastic liposomes such as ethosomes and transfersomes. Among these strategies transferosomes appear promising. A novel vesicular drug carrier system called transfersomes, which is composed of phospholipid, surfactant, and water for enhanced transdermal delivery. Transfersomes are a form of elastic or deformable vesicle, which were first introduced in the early 1990s.The system can be characterized by in vitro for vesicle shape and size, entrapment efficiency, degree of deformability, number of vesicles per cubic mm. These carriers can transport pharmacological agents, including large polypeptides, through the permeability barriers, such as the intact skin.
24 December 2012

ETHOSOMES: A NOVEL VESICULAR CARRIER FOR TRANSDERMAL DRUG DELIVERY

About Authors:
Patel Chirag J^*1, Prof. Satyanand Tyagi², Patel Pinkesh¹, Umesh Kumar¹, Patel Jaimin¹, Chaudhari Bharat¹
¹Department of Pharmaceutics, Maharishi Arvind Institute of Pharmacy, Mansarovar, Jaipur, Rajasthan, India-302020.
*Mr. Chirag Patel has published various Books, Research and Review articles. His academic works include 35 Publications (2 books was published in Lambert Academic Publishing, Germany & 8 Research Articles and 25 Review Articles was published in standard and reputed National and International Pharmacy journals)
²President & Founder, Tyagi Pharmacy Association (TPA) & Scientific Writer (Pharmacy), Chattarpur, New Delhi, India-110074.
*chirag.bangalore@gmail.com, +91-8000501871

ABSTRACT:
Transdermal drug delivery system is a type of convenient drug delivery system where drug goes to the systemic circulation through the protective barrier i.e. Skin. Skin acts as a major target as well as a principal barrier for topical / transdermal drug delivery. Vesicular system is one of the most controversial methods for transdermal delivery of active substances in that ethosome are the ethanolic phospholipids vesicles which are used mainly for transdermal delivery of drugs. Ethosomes have higher penetration rate through the skin as compared to liposomes hence these can be used widely in place of liposomes. The increased permeation of ethosomes is probably due to its ethanolic content. Ethanol increases the cell membrane lipid fluidity which results in increased skin penetrability of the ethosomes. These ethosomes permeates inside the skin and fuse with cell membrane lipids and release the drug. Hot and cold methods are used for formulation of ethosomes. Characterizations of ethosomesinclude Particle size, Zeta potential, Differential Scanning Calorimertry (DSC),Entrapment efficiency, Surface tension activity measurement, Vesicle stabilityand Penetration Studiesetc.
21 December 2012

MOUTH DISSOLVING TABLET: A OVERVIEW

About Authors:
Ashish Kumar Garg*, M.M. Gupta
Department of Pharmaceutics, Jaipur College of Pharmacy,
Jaipur, Rajasthan
*ashish1pharma@gmail.com

Abstract
Conventional dosage forms like tablets and capsules are now days facing the problems like dysphagia, resulting in the high incidence of non compliance and making the therapy ineffective. To obviate the problems associated with conventional dosage forms, mouth dissolving tablets have been developed having good hardness, dose uniformity, easy administration and serves as the first choice of dosage form for paediatrics, geriatrics and traveling patients. The MDTs were developed with an aim of having sufficient hardness, integrity and faster disintegration without water. Fast dissolving Tablets are disintegrating and/or dissolve rapidly in the saliva without the need for water. Some tablets are designed to dissolve in saliva remarkably fast, within a few seconds, and are true fast-dissolving tablets. Others contain agents to enhance the rate of tablet disintegration in the oral cavity, and are more appropriately termed fast-disintegrating tablets, as they may take up to a minute to completely disintegrate. This tablet format is designed to allow administration of an oral solid dose form in the absence of water or fluid intake. Such tablets readily dissolve or disintegrate in the saliva generally within <60 seconds.
7 December 2012

A REVIEW –COLON SPECIFIC DRUG DELIVERY-APPROACHES

About Authors:
Vijaya Kumar.Voleti*¹, Vaishnavi.V², V.Gunasekharan¹, M.S.Riyazullah¹, K.Vivekanandan¹
¹Department of pharmaceutics, Rao’s College of Pharmacy, Nellore, Andhra Pradesh, India,
²Department of pharmaceutics, Sankar Reddy Institute of Pharmaceutical Sciences, Andhra Pradesh, India
*vijay66vvk@gmail.com

ABSTRACT:
Colon specific drug delivery has gained a more importance for the delivery at colonic region by use of various drugs to treat the both local and systemic diseases. Local diseases include Chron’s disease, ulcerative colitis, and colorectal cancer. Other serious disorders like nocturnal asthma, Hyper tension , arthritis and angina can also be cured by these techniques. Colonic delivery is a good candidature for delivery of proteins peptides and vaccines where the enzymatic degradation and the hydrolysis of proteins can be minimized and increases the systemic bioavailability. A drug should be protected from the absorption and the upper GI environment to achieve the successful colonic drug delivery. The colon specific delivery of drugs to the target receptor sites has the advantage to reduce the side effects and improves the therapeutic response. Colon specific drug delivery are being developed by taking advantage of the luminal PH conditions and the presence of microbial enzymes such as azoreductase, pectinase, dextranase…etc. This review mainly reveals on the various concepts and approaches include Prodrug, PH and time dependent systems and microbially triggered systems used in the development of colon specific drug delivery. This also focuses on the novel approaches namely Pressure controlled colonic delivery, osmotic controlled drug delivery and CODESTM. Invitro and in vivo evaluation parameters has been discussed here.
7 December 2012

RECENT TRENDS IN ORAL DRUG DELIVERY: MOUTH DISSOLVING TABLETS

About Authors:
Soniya^1*, Tarun Parashar¹, Satyanand Tyagi², Patel Chirag J³, Rishikesh Gupta⁴
¹*Department of Pharmaceutics, Himalayan Institute of Pharmacy and Research, Rajawala, Dehradun, Uttarakhand, India-248002.
²President, Tyagi Pharmacy Association & Scientific Writer (Pharmacy), Chattarpur, New Delhi, India-110074.
³Department of Pharmaceutics, Maharishi Arvind Institute of Pharmacy, Mansarovar, Jaipur, Rajasthan, India-302020.
⁴Institute of Pharmacy, Bundelkhand University, Jhansi, Uttar Pradesh, India-284128.
*soniyarani487@gmail.com 08006939832/09999261031

ABSTRACT:
To obviate the problems associated with conventional dosage forms, mouth dissolving tablets have been developed having good hardness, dose uniformity, easy administration, faster disintegration without water and serves as the first choice of dosage form for pediatrics, geriatrics and traveling patients. Mouth dissolving tablets (MDTs) are also known as fast melting tablets, fast disintegrating tablets, fast dissolving/dispersing tablets or melt in mouth tablets.This article gives a brief review of mechanism of action, technologies used now a day for MDTs,Some of promising drug candidates for MDT and evaluation parameters MDTs.Due to wide significance of MDT, this drug delivery system may lead to better patient compliance and ultimate clinical output.
4 December 2012

RECENT ADVANCES IN FLOATING MICROSPHERES AS NOVEL APPROACHES: A REVIEW

About Authors:
Manish Jaimini^*, Vishal Joshi
Dept. Of Pharmaceutics, Jaipur college of Pharmacy,
Sitapura, Jaipur (Raj.) 302022
*manishjaimini@gmail.com

ABSTRACT
Novel drug delivery system as a major advance to solving the problems related to the release of the drug at specific site. These systems have several advantages over conventional multi dose therapy. There are various approaches in delivering a therapeutic substance to the target site in a sustained release fashion. One such approach is using microspheres as carriers for drugs. Microencapsulation is used to modify and delay drug release from pharmaceutical dosage forms. Microspheres efficiently utilized in controlled delivery of many drugs but wastage of drug due to low drug entrapment efficiency is the major drawback of such micro-particulate system. This review provides brief information about floating microspheres, method of preparations, evaluation and application of microspheres for sustained drug delivery.
3 December 2012

TASTE MASKING TECHNOLOGIES: A NOVEL APPROACH FOR THE BETTER PATIENT COMPLIANCE

About Authors:
Dhananjay S. Jadhav
M. Tech (Pharmaceutical Technology) Division of Pharmaceutical Technology,
School of Chemical Technology, North Maharashtra University,
Jalgaon- 425001, India
dhananjaysjadhav@hotmail.com

ABSTRACT
Oral administration of pharmaceuticals is one of the most popular method of drug dilevery.Taste is an important factor in the development of dosage form. “The worse the taste of the medication, the better the cure” was once the prevailing attitude. Many orally administered drugs elicite bitter taste. Undesirable and particularly bitter taste is one of the important formulation problems that are encountered with many drugs. Administration of bitter drugs orally with acceptable level of palatability is a key issue for health care providers. Proven methods for bitterness reduction and inhibition have resulted in improved palatability of oral pharmaceuticals. Several approaches like adding flavors and sweeteners, use of lipoproteins for inhibiting bitterness, coating of drug with inert agents, microencapsulation, multiple emulsion, viscosity modifiers, vesicles and liposomes, prodrug formation, salt formation, formation of inclusion and molecular complexes, solid dispersion system and application of ion exchange resins have been tried by the formulators to mask the unpleasant taste of the bitter drugs. The present review attempts to give a brief account of different technologies of taste masking with respect to dosage form and novel methods of evaluation of taste masking effect.

(adsbygoogle = window.adsbygoogle || []).push({});
26 November 2012

NANOTECHNOLOGY IN MEDICINE

About Authors:
P.Ramanujaiah*, Dr M.Purushothaman, Hemalatha
Vasavi institute of pharmaceutical sciences, Kadapa
*rama.mpharm@gmail.com

Abstract:
The application of nanotechnology to drug delivery has currently more than 20 Nanoparticles therapeutics are in clinical use, validating the ability of Nanoparticles to improve the therapeutic index of drugs. In addition to the already approved Nanoparticles, numerous other Nanoparticles platforms are currently under various stages of preclinical and clinical development, including various liposomes, polymeric micelles, dendrimers, quantum dots, gold Nanoparticles, and ceramic Nanoparticles. With continued research and development efforts, nanotechnology is expected to have a tremendous impact on medicine for decades to come.